<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
</head>
<body>
    <div id="app">
        <h1>登录/注册</h1>
        <button @click="type=1">新闻</button>
        <button @clcik="type=2">音乐</button>
        <button @click="type=3">首页</button>
        <p v-if="type===1">新闻.....</p>
        <p v-else-if="type===2">音乐.....</p>
        <p v-else>首页.....</p>
    </div>
<script>
    Vue.config.productionTip = false;

    const vm =new Vue({
        el:"#app",
        data() {
            return {
                type:1,
            }
        }
    })
</script>

</body>
</html>